CVE-2026-55738

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Source

https://cve.org/CVERecord?id=CVE-2026-55738

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55738.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-55738

Published

2026-06-17T13:45:00.399Z

Modified

2026-08-12T03:51:41.491418074Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Stack Buffer Overflow in rxi/microtar raw_to_header() via non-null-terminated TAR name field

Details

A stack-based buffer overflow exists in the rawtoheader function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source.

Database specific

{
    "cwe_ids": [
        "CWE-121",
        "CWE-170"
    ],
    "cna_assigner": "TuranSec",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55738.json"
}

References

Affected packages

Git / github.com/rxi/microtar

Affected ranges

Type

GIT

Repo

https://github.com/rxi/microtar

Events

Introduced

956791770defa4d06696b30db276e88a09ad3538

Last affected

956791770defa4d06696b30db276e88a09ad3538

Database specific

Show details

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0.1.0"
        },
        {
            "last_affected": "0.1.0"
        }
    ]
}

Affected versions

0.*

0.1.0

v0.*

v0.1.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55738.json"